MECHANICAL ENGINEERING HYDRAULICS & FLUID MECHANICS MCQs

The velocity of a fluid particle at the centre of the pipe section is

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The shear stress velocity gradient relation of the Newtonian fluids is

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A perfect gas

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An ideal fluid is

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The units of kinematic viscosity are

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The units of dynamic viscosity are

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The critical depth on a channel is given by

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The increase of temperature

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The bulk modulus of elasticity

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A barometer is used to measure

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1 N/m2 pressure is equivalent to

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A mercury water manometer indicates a gauge difference of 400 mm. The difference in pressure, measured in metres of water, is

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A pilot tube is used for the measurement of

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A rotameter is a device used to measure

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The hydrostatic law states that rate of increase of pressure in a vertical direction is equal to

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The continuity equation

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Which two forces are most important in laminar flow between closely spaced parallel plates

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Pascal's law states that pressure at a point is equal in all directions

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Eulers dimensionless number relates

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If the specific speed of a turbine is 800 the turbine should be

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The purpose of surge tank in a pipe line is to

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Essentially the gravity dam resists the loads to which it is exposed, due to its

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The value of bulk modulus of a fluid is required to determine

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The kinematic viscosity is the

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According to equation of continuity,

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The Bernoulli's equation is based on the assumption that

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The velocity corresponding to Reynold number of 2800, is called

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A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is

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he shear stress-strain graph for a newtonian fluid is a

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The length of the divergent cone in a venturimeter is __________ that of the convergent cone

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An open tank containing liquid is moving with an acceleration on an inclined plane. The inclination of the free surface of the liquid will be __________ to the acceleration of the tank.

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When a cylindrical vessel containing liquid is revolved, the surface of the liquid takes the shape ofWhen a cylindrical vessel containing liquid is revolved, the surface of the liquid takes the shape of

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The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

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Falling drops of water become spheres due to the property of

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The total energy of a liquid particle in motion is equal to

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A notch is used to measure __________ of liquids.

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The force present in a moving liquid is

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A flow in which the quantity of liquid flowing per second is not constant, is called

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The unit of surface tension is

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In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be

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